IdeaCentre Horizon 27 All-In-One PC Hardware Maintenance Manual

Step4.Removetherearcover.Referto“Removingtherearcover”.
Step5.RemovetheEMIcover.Referto“RemovingtheEMIcover” .
Step6.Disconnectthebatterycablefromtheconnectoronmotherboard.Referto“Replacingthebattery” .
Step7.Removethethreescrewsthatsecurethesystemfantotheheat-sink.
Step8.Disconnectthepowercablefromthemotherboard.
Step9.Liftupthesystemfantoremoveit.
Note:Allthreefanscanbereplacedbyusingthesamemethod.
Step10.Toinstallanewsystemfan:
a.Lineupthenewsystemfanwiththemountingholesontheheat-sinkandplaceitintoposition.
b.Securethenewsystemfantotheheat-sinkwiththethreescrews.
c.Connectthenewpowercabletotheconnectoronmotherboard.
d.Reconnectthebatterycabletotheconnectoronthemotherboard.
Step11.ReattachtheEMIcoverandrearcover.
Replacingtheheat-sinkmodules
Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthebasecover.
Toreplacetheheat-sinkmodules:
Step1.Removeanymedia(disks,CDs,DVDsormemorycards)fromthedrives,shutdowntheoperating
system,andturnoffthecomputerandallattacheddevices.
Step2.Unplugallpowercordsfromelectricaloutlets.
Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)
cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.
Step4.Removetherearcover.Referto“Removingtherearcover”.
Step5.RemovetheEMIcover.Referto“RemovingtheEMIcover” .
Step6.Disconnectthebatterycablefromtheconnectoronmotherboard.Referto“Replacingthebattery” .
Step7.Removethesystemfans.Referto“Replacingthesystemfans” .
34IdeaCentreHorizon27All-In-OnePCHardwareMaintenanceManual